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Nas 2 TCC Actual Exam Newest 2026 Complete
Questions And Correct Detailed Answers |Already
Graded A+||Already Graded A+||LATEST EXAM!!!
What is the purpose of the scientific method? - Answer-
The scientific method is an organized way to study the
natural world and find out how it works.
What are the steps of the scientific method? - Answer-Ask
a Question.
Do Background Research.
Construct a Hypothesis.
Test Your Hypothesis by Doing an Experiment.
Analyze Your Data and Draw a Conclusion.
Communicate Your Results.
Distinguish between independent and dependent variables
- Answer-An independent variable is the variable that is
changed or controlled in a scientific experiment to test the
effects on the dependent variable.
A dependent variable is the variable being tested and
measured in a scientific experiment.
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Distinguish between control and experimental groups -
Answer-An experimental group is the group in an
experiment that receives the variable being tested. One
variable is tested at a time. The experimental group is
compared to a control group, which does not receive the
test variable.
Distinguish between hypothesis and theory. - Answer-A
hypothesis is an attempt to explain phenomena. It is a
proposal, a guess used to understand and/or predict
something. A theory is the result of testing a hypothesis
and developing an explanation that is assumed to be true
about something.
Define Anatomy and Physiology - Answer-Anatomy is the
study of the structure and relationship between body parts.
Physiology is the study of the function of body parts and
the body as a whole.
Identify the six levels of organization (chemical, tissue,
etc.) - Answer-1) Chemical Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
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6) Organismal level
Identify the requirements for life: - Answer-1. Reproduction
2. Response/reaction to environment 3. Metabolism 4.
Growth.
Identify survival needs: - Answer-survival needs (5):
nutrients, oxygen, water, stable body temperature, and
atmospheric pressure
What is homeostasis? - Answer-The tendency of an
organism or a cell to regulate its internal conditions,
usually by a system of feedback controls, so as to stabilize
health and functioning, regardless of the outside changing
conditions.
What are the basic mechanisms of homeostasis? -
Answer-- Homeostatic control mechanisms have at least
three interdependent components: receptor, control center,
and effector.
- The receptor senses environmental stimuli, sending the
information to the control center.
- The control center, generally the brain, signals an
effector (e.g. muscles) to respond to the stimuli.
Nas 2 TCC Actual Exam Newest 2026 Complete
Questions And Correct Detailed Answers |Already
Graded A+||Already Graded A+||LATEST EXAM!!!
What is the purpose of the scientific method? - Answer-
The scientific method is an organized way to study the
natural world and find out how it works.
What are the steps of the scientific method? - Answer-Ask
a Question.
Do Background Research.
Construct a Hypothesis.
Test Your Hypothesis by Doing an Experiment.
Analyze Your Data and Draw a Conclusion.
Communicate Your Results.
Distinguish between independent and dependent variables
- Answer-An independent variable is the variable that is
changed or controlled in a scientific experiment to test the
effects on the dependent variable.
A dependent variable is the variable being tested and
measured in a scientific experiment.
,2|Page
Distinguish between control and experimental groups -
Answer-An experimental group is the group in an
experiment that receives the variable being tested. One
variable is tested at a time. The experimental group is
compared to a control group, which does not receive the
test variable.
Distinguish between hypothesis and theory. - Answer-A
hypothesis is an attempt to explain phenomena. It is a
proposal, a guess used to understand and/or predict
something. A theory is the result of testing a hypothesis
and developing an explanation that is assumed to be true
about something.
Define Anatomy and Physiology - Answer-Anatomy is the
study of the structure and relationship between body parts.
Physiology is the study of the function of body parts and
the body as a whole.
Identify the six levels of organization (chemical, tissue,
etc.) - Answer-1) Chemical Level
2) Cellular level
3)Tissue level
4)Organ level
5)Organ system level
, 3|Page
6) Organismal level
Identify the requirements for life: - Answer-1. Reproduction
2. Response/reaction to environment 3. Metabolism 4.
Growth.
Identify survival needs: - Answer-survival needs (5):
nutrients, oxygen, water, stable body temperature, and
atmospheric pressure
What is homeostasis? - Answer-The tendency of an
organism or a cell to regulate its internal conditions,
usually by a system of feedback controls, so as to stabilize
health and functioning, regardless of the outside changing
conditions.
What are the basic mechanisms of homeostasis? -
Answer-- Homeostatic control mechanisms have at least
three interdependent components: receptor, control center,
and effector.
- The receptor senses environmental stimuli, sending the
information to the control center.
- The control center, generally the brain, signals an
effector (e.g. muscles) to respond to the stimuli.
